A 3-D Constitutive Model of Agarose with a Range of Gel Concentrations Facilitates Finite Element Analyses Aimed at Mechanobiology

2020 ◽  
Author(s):  
David M. Pierce
Keyword(s):  
Finite Element ◽  
Constitutive Model ◽  
Finite Element Analyses

408 Applicability of an Orthotropic Constitutive Model for a Cortical Bone to Finite Element Analyses

2011 ◽  
Vol 2011.60 (0) ◽  
pp. _408-1_-_408-2_
Author(s):  
Kazuho IWAMURA ◽  
Satoko HIRABAYASHI ◽  
Eiichi TANAKA ◽  
Masami IWAMOTO
Keyword(s):  
Finite Element ◽  
Constitutive Model ◽  
Cortical Bone ◽  
Finite Element Analyses

435 Finite Element Analyses Using a Constitutive Model of Cortical Bone

2005 ◽  
Vol 2004.17 (0) ◽  
pp. 369-370
Author(s):  
Masami IWAMOTO ◽  
Eiichi TANAKA ◽  
Kohei DENDA ◽  
Sota YAMAMOTO
Keyword(s):  
Finite Element ◽  
Constitutive Model ◽  
Cortical Bone ◽  
Finite Element Analyses

The Implicit Euler Form of Walker Viscoplastic Constitutive Model

2011 ◽  
Vol 80-81 ◽  
pp. 621-625
Author(s):  
Qing Wu Wang ◽  
Shi Hui Zhang
Keyword(s):  
Finite Element ◽  
Constitutive Model ◽  
Finite Element Analyses ◽  
Hastelloy X ◽  
Euler Form ◽  
Model Equations

In this paper, in the Walker viscoplastic constitutive model equations are rewritten and the implicit Euler integration form of the Walker model is obtained. Furthermore, using this integration form, the subroutine HYPELA in MSC.Marc software has been coded. The finite element analyses, using subroutine HYPELA have been performed on HASTELLOY-X material, and the comparison between the implicit Euler integration and the explicit Euler integration has been done.

Design of flexure revolute joint based on compliance and stiffness ellipsoids

2021 ◽  
pp. 095441002110169
Author(s):  
Jing Zhang ◽  
Hong-wei Guo ◽  
Juan Wu ◽  
Zi-ming Kou ◽  
Anders Eriksson
Keyword(s):  
Finite Element ◽  
Single Point ◽  
Synthesis Method ◽  
Nonlinear Finite Element ◽  
Finite Element Analyses ◽  
Rotational Stiffness ◽  
Rotational Angle ◽  
Parameterized Model ◽  
Flexure Joints ◽  
Translational Stiffness

In view of the problems of low accuracy, small rotational angle, and large impact caused by flexure joints during the deployment process, an integrated flexure revolute (FR) joint for folding mechanisms was designed. The design was based on the method of compliance and stiffness ellipsoids, using a compliant dyad building block as its flexible unit. Using the single-point synthesis method, the parameterized model of the flexible unit was established to achieve a reasonable allocation of flexibility in different directions. Based on the single-parameter error analysis, two error models were established to evaluate the designed flexure joint. The rotational stiffness, the translational stiffness, and the maximum rotational angle of the joints were analyzed by nonlinear finite element analyses. The rotational angle of one joint can reach 25.5° in one direction. The rotational angle of the series FR joint can achieve 50° in one direction. Experiments on single and series flexure joints were carried out to verify the correctness of the design and analysis of the flexure joint.

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